This pressing appears to be the transition between an early stamper format of XLP47324-1XX (no hyphen) and the later stamper format of XLP-47324-1XX. The earlier Guaranteed High Fidelity 1963 label has the old stamper format and this pressing has the new stamper format. Additionally, the label is slightly different. "Guaranteed High Fidelity" is in a different font and there is more space before the Columbia information in white at the bottom of the label.